Sprinkler



' Jan. 4, 1927.

C. A. BREWER SPRINKLER Filed June 14, 1923 Patented Jan. 4*, 1927.

warren stares CHARLES g. BREWER, OF NGROTON HEIGHTS, CONNECTICUT.

SPRINKLER.

Application filed June 14, 1923. Serial No. 645,323.

The. object of this invention is to provide a self-cleaning sprinklerfor watering lawns and for other purposes where it is desired todistribute water and other liquids in the form of spray or a film. I

The invention consists of a sprinkler head containing a floating gravityplate with which the liquid contacts and through which it escapes to adistributing disk which preferably is stationary and which throws oi'the liquid in a spray or film, this floating plat-e being responsive tothe pressure of the liquid to catch dirtand throw it off under pressure,and being interposed between the disk and a stationary perforated plate.in the head. In the preferred construction a screen is arranged in thehead below the perforated plate which serves to check the outflow ofdirt and sediment; and the head is adapted to be rotated in a holder sothat it may be readily attached to a hose by screwing the head on thehose.

The invention also consists in the assembling means by which thesprinkler may be economically manufactured.

These and other features of the invention will be explained now indetail and the invention hereinafter finally set forth in the claimsfollowing.

In the accompanying drawings illustrating the invention, in the severalfigures of which like parts are similarly designated, Figure 1 is aperspective view showing the invention mounted for use. Fig. 2 is a topplan view, and Fig. 3 is a vertical section of the sprinkler and part ofthe holder. Fig. 4 is a top plan view of the floating plate. Fig. 5 is atop plan view of the stationary plate. Fig. 6 is a view like Fig. 3, butwith the floating plate at rest.

The sprinkler head is a two-piece casing or shell comprising a base 1having a screwthreaded member 2 to couple with a hose coupling 3, eitherof which may have the gasket 4, and above this is the groove 5 to engagewith a circular open eye 6 of the holder 7 loosely so as to permit thesprinkler head to be turned freely on and off the hose. Said eye maystand off from a standard 8 adapted to be driven into the earth tosupport the sprinkler when used on a lawn. The holder, however, is not anecessary part of the invention, since the sprinkler may be usedotherwise and other forms of support may be employed. The eye 6 permitsrotation of the sprinkler in order to couple it with the hose 9 or othermedium for supplying liquid to it for distribution. The eye being open,as shown by the dotted lines in Fig. 2, the sprinkler may be readilyinserted in it, but without danger of slipping out, although it iscapable of being removed. The base flares out laterally from the memher2, as shown at 10, and it is provided with a seat 11 to receive andsupport a screen 12 of wire netting or other foraminous or reticulatedconstruction. This seat also supports above the screen, the perforatedplate 13, having the bearing flange let, the elevated perforated portion15, and the central elevated knob 16. The top portion 17 is of anapproximate Z shaped cross section having its lower outwardly extendingflange 18 resting upon the flange 14, and its upper flange 19 extendinginwardly. In other words, the top portion is a flanged ring-likestructure.

Beneath the top portion 17 and above the perforated plate is thefloating plate 20, of annular form, provided with the central opening21, which encircles the knob 16, and having the reenforcing embossments22, and a flat rim 23 which is engaged by the flange 19 of the topportion.

24: is the distributing disk mounted upon the knob 16 and preferablysecured thereto,

'as by the rivet 25. This disk preferably has the upwardly flaring rim26.

The distance between the distributing disk and the floating plate in thereleased position of the latter, Fig. 6, is sufficient to allow theliquid to carry away any sediment that might pass through the screen,the screen serving as a sieve. Any particles passing through the screenwould be considerably smaller than the space around the floating platein its released position.

The parts being arranged as in Fig. 3, they are secured by closing downthe rim flange 27 of the flared portion of the base over'the flange 18of the top portion 17, leaving the floating plate 20 free to respond topressure within the sprinkler head and to direct the flowing liquidthrough its hole 21 against the knob 16 and the distributing disk 24,whereby it is diffused in spray or film form. When the pressure is on,the floating plate 20 is raised into contact with the flange 19, asshown in Fig. 3, thus giving the liquid free egress through theperforated plate 13. When the pressure is cut off the floating plate isfree to fall from that position and rest slightly above the elevatedportion of the stationary plate whence it is lifted upon the restorationof pressure. This responsivity of the floating plate to dif lierences inpressure aids in rendering the sprinkler self-cleaning.

The holder shown not only permits the turning of the sprinkler to coupleit with the hose and uncouple it thereiron'i, but it also serves to holdthe sprinkler in an upright position to ensure the correct distribu tionof the liquid.

Of course the sprinkler is readily detachable from the hose.

T he parts of the sprinkler may be readily made of sheet metal, stampedor pressed to shape, and the construction is so designed as to reducethe cost of in'ai'iutacture very materially.

As already indicated, the floating plate drops by force of gravity whenthe liquid pressure is partially or completely cut oil, and this allowsaccumulated par-tides, sediinent, etc., to be released hrough the sprayopening 21 and the liquid is again allowed to flow freely, thus makingpossible the cleaning out the sprinkler by turning on or off the liquid.

Variations in the details of construction are permissible Within theprinciple of the invention and the claims following.

What I claim is 1. A sprinkler, having a head provided with a liquidinlet, k. stationary perforated plate inounted in the head and havingcentral upstanding knob an outlet in said head, a distributing platestationarily mounted above the outlet, and an annular floating platelocated between the stationary perfo rated plate and said outlet andencircling said knob and responsive to variations in g ;o render thesprinkler elf-cleaning. 2. i'i sprinkler, with a liquid inlet and aliquid outlet, a stationary perforated plate mounted in the head, anannular floating plate located between the stationary perforated plateand.

l ("tosaid outlet and eneireling J and responsive to variations inwithin the rinkler and serving J the sprinkler self-cleaning.

"i sprinkler, having a base portion proto and vided with means forcoupling it With a liq uid supply and a laterally flaring upper portioncontaining a seat, a screen mounted on said 5 at, a stationaryperforated plate mounted on the seat and above the screen, top ineinbercontaining an outlet for the liquid and provided with a flange restingabove the stationary plate, a portion of the base being closed down onsaid flange and serving to unite the parts, and a floating plateinterposed between the perforated plate and the top portion.

' In testimony whereof I have hereunto setmy hand this th day of AprilA. l). 1923.

CHARLES A. BREW ER.

having a head provided.

head nrovided

